@article {60,
	title = {Stretching and unzipping nucleic acid hairpins using a synthetic nanopore},
	journal = {Nucleic Acids Res},
	volume = {36},
	year = {2008},
	month = {2008 Mar},
	pages = {1532-41},
	abstract = {<p>We have explored the electromechanical properties of DNA by using an electric field to force single hairpin molecules to translocate through a synthetic pore in a silicon nitride membrane. We observe a threshold voltage for translocation of the hairpin through the pore that depends sensitively on the diameter and the secondary structure of the DNA. The threshold for a diameter 1.5 < d < 2.3 nm is V > 1.5 V, which corresponds to the force required to stretch the stem of the hairpin, according to molecular dynamics simulations. On the other hand, for 1.0 < d < 1.5 nm, the threshold voltage collapses to V < 0.5 V because the stem unzips with a lower force than required for stretching. The data indicate that a synthetic nanopore can be used like a molecular gate to discriminate between the secondary structures in DNA.</p>},
	keywords = {Biological Transport, DNA, Electric Conductivity, Membranes, Artificial, Models, Molecular, Nanostructures, Nucleic Acid Conformation, Silicon Compounds},
	issn = {1362-4962},
	doi = {10.1093/nar/gkm1017},
	author = {Zhao, Q and Jeffrey Comer and Valentin Dimitrov and Yemenicioglu, S and Aleksei Aksimentiev and Gregory Timp}
}
